All final boss battles in Mario Sports Games from 2004 to 2020:

Mecha Bowser Mario Power Tennis Nintendo GameCube/Wii
Super Team Super Mario Strikers GameCube
Petey Piranha Mario Strikers Charged Wii
Behemoth King Mario Sports Mix Wii
Boom Boom Mario Sports Superstars 3DS
Bowcien Mario Tennis Aces Switch

1080p 60fps Gameplay recorded and edited by Nintendo Unity. Consider to like, share and subscribe to support the channel.